1. Trademarks are the protected objects specified in China's Trademark Law, which belong to intellectual property
2. Works, which are specified in China's Works Law, belong to intellectual property
3. IDEA. The objects protected by the Patent Law include inventions, utility models and designs. Utility model refers to a new practical technical scheme for the shape, structure or combination of products. From the perspective of the difference between patent law and copyright law, its essence is to protect ideological content. However, on closer examination, "rules and methods of intellectual activities" belong to the category of IDEA, but not to the object of patent protection, so from a rigorous point of view, 3 is not the right answer, but from the point of view of the author's intention, 3 is to be chosen.
4. Software, which is protected by software works in China, belongs to knowledge production
5. Brand, which refers to the company's name, trademarks of products or services, and other intangible assets that can be different from competitors' signs and advertisements and constitute the company's unique market image.